1925] New Species of North American Dolichopodidce 179 
This is the only species known as far as I can find that has 
the antennae partly yellow; in all others described from North 
and South America and Asia (there are none in Eur pe the 
antennae are wholly black. 
Neurogonia minima sp. nov. 
Male: Length 1.5 mm. Face wide, narrowed below, 
blackish. Front and occiput black with white pollen. An- 
tennae brown, third joint small, somewhat conical in outline, 
abruptly narrowed where the arista is inserted extended into an 
outuse point; arista pubescent, inserted near the middle of the 
upper edge of third joint. Orbital cilia minute, pale; bristles 
of the head reddish. 
Thorax reddish brown, dorsum dull brown; depressed space 
before the scutellum large, dark brown with gray pollen; I can- 
not see any acrostichal bristles; dorsocentrals large, black when 
viewed from above, still against a dark background they appear 
more or less yellow. Abdomen blackish, hypopygium more 
reddish brown, large, somewhat pedunculate, oval, but a little 
narrowed towards the tip, where there are minute lamellae and 
a fringe of long hairs. 
Coxae, femora, tibiae and tarsi yellow, middle and hind tarsi 
a little infuscated on outer surface; fore coxae with white hairs, 
legs without long hairs. Joints of fore tarsi are as 17-8-6-5-4; 
of middle ones as 22-11-7-5-5; those of posterior pair as 12-14-9- 
6-5. Calypters, their cilia and the halteres yellow. 
Wings grayish; second, third and fourth veins nearly 
straight and a little divergent from opposite the middle of the 
first vein; cross-vein near the middle of the wing; first vein 
reaching about half the distance to the cross-vein. 
Described from one male taken at Ithaca, New York, 
August 28, 1894. Type in the Cornell University Collection. 
This differs from nigricornis Van Duzee in having the an- 
tennae more pointed at tip, the thorax dull, not at all shining, the 
hypopygium less bulky, coxae and legs darker, especially the 
middle and hind coxae, the bristles of the head more reddish, and 
in being smaller in size. 
